Home / 809,269.60-1,215,286.80-436,021.60

Finding the Fourth Proportional to 809,269.60, 1,215,286.80 and 436,021.60

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Solution

The fourth proportional to 809,269.60, 1,215,286.80 and 436,021.60 is: 654,777.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,269.60 : 1,215,286.80 = 436,021.60 : x
  2. Step 2: Convert to fraction form
    809,269.60/1,215,286.80 = 436,021.60/x
  3. Step 3: Cross multiply
    809,269.60x = 1,215,286.80 × 436,021.60
  4. Step 4: Simplify right side
    809,269.60x = 529,891,294,994.88
  5. Step 5: Solve for x
    x = 529,891,294,994.88/809,269.60
  6. Step 6: Final answer
    x = 654,777.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.